Palaeolithic Hafting in Himachal Sub-Himalaya

Hafting has brought a landmark change in technology and behavior of the Palaeolithic man heralding evolution of anatomical modernity and behavior. The author recently discovered large assemblages of Late Acheulian to Middle Palaeolithic industries from the Quaternary fans of the Sub-Himalayan piedmont area of Ghumarwin Sir Khad valley of Himachal Pradesh. He iden-tified 20 typological categories in a collection of 450 stone implements, which include several new tool types, so far unknown in other Indian sites. There is a remarkable occurrence of 111 hafted implements; almost one in four is the hafted tools (24.67%). They include large-sized axes/adzes, spears, sickles, shovels, picks, chopping tools, etc. among the frequent types, noticed for the first time in north-western Sub-Himalaya of India. The diversified hafting in the region suggests diverse activities of the prehistoric man, like intense wood cutting/wood work, large game hunting, butchering, and some warfare as well. In addition, soil processing for primeval farming is also indicated.


Introduction
The Sub-Himalayan region of Ghumarwin Siwalik terrain is best known world-wide for the fossil remains of the Late Miocene primates, like lorises, tree shrews and Krishnapithecus, and large hominids, like Sivapithecus and Gigantopithecus. Attention towards the occurrences of Soan Palaeolithic pebble implements in the Siwalik confinements of this area was first drawn by the author (Sankhyan, 1979(Sankhyan, , 1983. But, he encountered the large flake Acheulian for the first time in the year 2010 at Kallar -Balghad tri-junction of the Sir Khad and the Saryali Khad with the major river Satluj (Figure 1). These explorations were resumed for the Acheulian in the year 2014, but more vigorously and systemati-

Geomorphology & Chronology
The Sub-Himalayan terrain in Ghumarwin region is the uplifted Siwalik piedmont zone between the Lesser Himalayan hill (dhar) in the east and the Upper Siwalik Boulder Conglomerate Formation, including outcrops of the Middle Siwalik in the west. The Boulder Conglomerate was deposited during 1.8 -1.1 million years ago (Valdiya, 1993;Kumar et al., 2007;Tandon et al., 1984 Quaternary fans, termed Qf-1 (the older) and Qf-2 (the younger) fan deposits that occurred in the intra-montane hog-back basin surfaces (Kumar et al., 2007).
Therefore, the stone tools in these aggradational fans (  ). It is time transgressive laterally from east to west with the central part remaining as the uplifted inter-fan domain, linked to the intra-foreland thrusting. In Ghumarwin-Bam-Jahu study area its thickness was measured to about 6 -7 meters. The Qf 1 piedmont zone was inhabited by the Acheulian man, evident from the heavy duty handaxes, cleavers, choppers and other large tools derived from its section, but without any hafted tools. Therefore, the maximum dates of the Acheulian tools in Qf-1 could be linked with recession of the Boulder Conglomerate Formation.
The Qf-1 was gradually entrenched and eroded resulting in formation of Qf-2 alluvial fan beginning over 73 ka and went on for long until -24.5 ka (Kumar et al., 2007). In Ghumarwin-Bam-Jahu-Mundkhar area the Qf-2 section is about 4 -5 meters in thickness comprised of graded layers of boulders, cobbles (including some Qf-1 stone tools), gravel, sand lenses and silt ( Figure 3 The intra-montane entrenchment of Qf-2 by the Sir Khad exposed its contents along and on the river bed. Most of the hafted implements belong to the Qf-2, sometimes found mixed up with some heavy duty tools eroded from the Qf-1.

Deep natural erosional trenches in Bam valley provide glimpses of in situ Middle
Palaeolithic tools in the Qf2 context, which included hafted tools. The Qf2 eroded by the Sir Khad bed exposes incredible concentration of this mixed up industry spread all over where hafted tools are found in greater number.
At Bam, a major tributary of Sir Khad is Drugh, which emerges from a deep gorge formed within the Upper Siwalik Boulder Conglomerate Formation. Its collapsed Qf2 near Bam-Tanda-Talwara has yielded a remarkable number of almost fresh stone tools from the cutting of the Qf-1 and Qf-2.
Extensive mining in the Sir Khad and its tributaries has resulted in heavy loss of tools and the sites would soon be lost forever. At Jahu Triveni trijunction, where two tributaries meet the Sir Khad, extensive mining for sand, gravel, cobbles and medium-sized boulders, the left out huge boulders and erratics are conspicuously overlooking the landscape.

Material and Methods
The Ghumarwin stone tool assemblage is so varied and unique in typology with hitherto unknown types anywhere in north India. Till date, the only one large known Acheulian site in north India is Atabarpur in Punjab Siwalik Frontal Range that has yielded considerable Acheulian artifacts (Mohapatra, 1981;Kumar & Rishi, 1986). These, a sample of 50 tools that included handaxes, cleavers, scrapers and choppers, were analyzed in depth by Gaillard et al. (2008). However, in comparison the Ghumarwin assemblage is very huge with great richness, Advances in Anthropology intensity, variety and uniqueness of tools. The Bam site near the village of Bam, alone provided a large sample of 350 with large number of unique hafted tools. It is, therefore, christened as Bamulian (Sankhyan, 2018).

Techniques Used
The Ghumarwin implements are made on medium to coarse-grained quartzite cobbled and boulders of various hues from light gray, ash gray, ash-brown chocolate, ash black and black, besides many on milky quartz. The quartzite is generally fined-grained and highly metamorphosed. The toolmaker has intelligently chosen the large flakes, cores and blanks and worked one surface only leaving the other natural convex smooth surface intact in production of unifacial handaxes, which presents biconvex look. In fact, due to abundance of raw material on the site, the toolmaker spent minimum energy on refinement of the tools such that most of the handaxes are unifacial. In true core bifaces the proximal part of the tool cortex is trimmed retaining the hind thick cortical butt. The tool-maker preferred to make long and ovate or round handaxes, trimmed at the circumference with minimum effort. The Kombewa core reduction technique is frequently employed for handaxes and cleavers to shed out the core burden. Among the Middle Palaeolithic tools, the Levalloisian broad and elongated tongue-like ventral face of the large and small flakes is a common feature, where the striking platform is short or broad and internally angles at about 30˚. In most of cases the bulb of percussion is defused. Large and small tortoise cores are in good number. The long flakes are trimmed to produce chopping tools with a long handle-like shoulder. Both shouldered and tanged spears are produced. Large to small axes/adzes are produced with beveled large horizontal or slightly convex cutting edge and shouldered neck for a haft. Some cleaver type tools were made with a large tang, likely used as spuds (khurpi). Large to medium-sized sickles are retouched at their inner concave side retaining the thick convex side with a small shoulder or tang at butt end for hafting. Meticulously obtained large, oval and very thin flakes are retouched to produce foliates or "Laurel Leaf" like swords. Some wood Splitters (addu) were also found with mid tangs and wide striking platform made for hammering. There are also a good number of large to small retouched arrow points.

Total Ghumarwin Assemblage
A total sample of 450 stone tools was catalogued, analyzed of which the Bam site alone has yielded about 350 tools, excluding the untouched flakes and unfinished artifacts which were not sampled leaving lots of artifacts in the site. Massive handaxes also form part of the industry as are the large-sized cleavers as well as the choppers, only a few of them were sampled. 20 typological categories were distinguished listed in Table along with the numbers of implements in each category, their per cent occurrence in the total sample. Among the same types, the number and percentage of hafted implements are listed in the

Ghumarwin Hafted Implements
The Acheulian tools were used for long by holding them in hands from the rounded smooth butt and used for short distance hunting and butchering. Gradually, to avoid direct encounter with dangerous animals, Palaeolithic man learned the art of throwing them from a distance. Thus, he got the idea of sharpening the implements and of a handle-like shoulder or a tang (neck) to tie them with a wooden post. Thus, he invented a hammer, an axe/adz, a spade or hoe and a spud which provided more effective leverage. Similarly, he invented a spear and arrow point to hit the target from a distance. Hafting, thus tremendously improved implement's effectiveness and range to hit the target and brought about radical change in technology development. The scrutiny of the Ghumarwin sample for hafting evidence brings out at least 111 (24.67%) shouldered and tanged or side-backed haftable stone tools in the sample of 450 tools. Some types of hafting categories include: 1) shouldering in most of the hafted tools, chopping tools, hammers, axes, spears and arrow points, 2) tanging in axes, shovels/hoes, spears, arrow points, Splitters and Spuds, and bone spatulas, 3) backing in sickles, knives, end scrapers, in bone dagger, 4) retouching in foliates, arrow points, etc.
It is observed that the shouldered axes or adzes totaling to 25 (5.56%) are the most frequent among the haftable tools, which vary in size from large (8) to medium (7) and small (10) ones (Figures 4-6). This is an impressive evidence to reveal intensive wood cutting/wood work activities, further supported by 3-tanged Splitters (locally called addu) and one large saw cutter-part of a carpenter's tool kit (Figures 7). The second largest haftable tool category is of 17 spears, which vary in size from large to small (large = 5, small = 12) and suggest large-scale hunting, and even a warfare between different prehistoric groups. The third frequent category is of the backed knife which are indented and total to 14 (3.11%) and indicate fine slicing of small wild edible plants, vegetables and fruits. Next sizeable category is of 10 end-scrapers (2.22%) used for skillful scarping of flesh or skinning of the hunt. The shouldered or tanged arrow-head points come next in plentiful number, though here only 9 (2%) better refined ones are included in Table 1; they indicate frequent shooting at the pray or enemy from a distance.    with triangular flat smooth ventral surface and small dorsal tang to hold, appears to be special tool for pressing the hides for tent or clothing.
All above 109 late Acheulian to Middle Palaeolithic hafted diverse implements endorse engagements of the prehistoric man in different activities right from hunting, meat chopping, plant cutting and wood work and soil processing, including cloth-making. They speak a proxy for a developed mental capacity and arrival of modern man in the Sub-Himalayan region of Ghumarwin area, as early as 70 ka.

Hafting in Rest of India & South Asia
The only other reported nearby Acheulian site is Atabarpur in Panjab Frontal Range, where there is no evidence of hafting, and only common artifact types are represented in their sample of 50 tools, such as handaxes, cleavers, choppers, scrapers and discoids. Here the cleavers are double than the handaxes unlike Ghumarwin, where it is just reverse. The hafting in the form of Shouldered pieces appeared in western India about 96 ka, whereas the tanged pieces and points appeared there in different sites between 96 -58 ka (Blinkhorn 2014(Blinkhorn , 2018(Blinkhorn , 2019. The tanged tools appear there less frequently in Late Palaeolithic and continued use unto the terminal Pleistocene (Sali, 1989).
In South India the tanged-point hafting is dated with YTA signatures in the Middle Palaeolithic Jwalapuram 22 site at ~77 ka (Haslam et al., 2012), and at the Late Palaeolithic Jwalapuram 9 for the backed points at ~35 ka, which is regarded as the most secure evidence of hafting across South Asia (Clarkson et al., 2009). Another famous site in South India is Attirampakam (Tamil Nadu), wherefrom two tanged pieces recovered and dated between about 385 ka and 175 ka (Akhilesh et al., 2018). Blinkhorn (2019) considers 385 ka Attirampakam date as enigmatic solitary isolated local innovation in view of "Out of Africa" origins of hafting in Africa and subsequent spread to western Eurasia between 300 -200 ka claiming that hafting was discovered by the common ancestors of Homo sapiens and Neanderthals.
In his latest review Blinkhorn (2019) (Sankhyan, 2020a). The first report of hafting in Central India is from the Narmada valley mentioned below.

Inventors of Hafting
Hitherto hafted tools were not previously reported from the Hathnora hominin site in the Central Narmada valley that yielded a partial hominin skullcap (calvarium) (Sonakia, 1984). It is debated an "evolved" Homo erectus or "archaic" Homo sapiens or Homo heidelbergensis (Sankhyan, 2006(Sankhyan, , 2010 and tentatively dated to ~236 ka (Patnaik et al. 2009). Its higher cranial capacity (1200 -1400 mm) led to speculation of capability for hafting (Athreya, 2015). However, for the first time the author and associates excavated direct evidence of hafting ( Figure 9) from the hominin fossil beds both at Hathnora and Netankheri (Sankhyan et al., 2012a(Sankhyan et al., , 2012b. A large flake Acheulian shouldered chopping tool was found at the Hathnora calvarium bed below U1 cemented gravel. A tanged spear was found at Sardarnagar U2 bed along with a very thin ovate sharp razer knife. Hafted bone tools, and chert arrow-head points at Netankheri U3/U2 interface in association with a human fossil humerus and two sacra datable to ~70 ka ( Figure 9). Earlier, the yellow sand Hathnora U1/U2 interface, datable to ~150 ka, had also yielded two tiny hominin clavicles and a 9th rib (Sankhyan, 1997a(Sankhyan, , 1997bSankhyan, 2005), belonging to a "short and stocky" hominin resembling the Andaman pygmy in body dimensions (Sankhyan & Rao, 2007;Sankhyan, 2020b). The Hathnora and Netankheri hominin postcranial fossils establish continuity of the "short and stocky" lineage unto ancient Indian heartland, like Pauri Bhuiya, which share mtDNA signatures with the Andaman pygmy until they branched off ~25 ka. So far the author and associates have collected 14 hominin postcranial fossils from different localities in the Central Narmada valley in stratified contexts (Sankhyan, 2017a(Sankhyan, , 2017b(Sankhyan, , 2020b) that suggest it a long solitary "paradise" of Middle to Late Pleistocene hominins in South Asia. None among many Narmada explorers could lay hand on such rare human fossils, perhaps therefore, a few scholars in their superficial overviews create confusion on their stratigraphic contexts. It may be clarified here that we followed the stratigraphic classification competently worked out by Tiwari and Bhai (1997).
Close to Narmada valley Pal (2013) recovered two tanged tools from the northern fringe of the Kaimur Range in the Vindhya overlooking the Belan valley in the north. The author also collected portable art objects from Narmada valley (Figure 9). In the year 2016, the author collected two tanged spears and a round knife of granite reported here from the eastern flank of the rocky Aravalli hill, called northern Delhi Ridge. It is, therefore, quite likely that hafting arrived in the Ghumarwin Sub-Himalaya ~100 ka via the Aravalli/Vindhya/Narmada valley. This Sub-Himalayan region is turning an interesting hot spot of intense and diverse prehistoric hafting activities during Late Acheulian to Middle Palaeolithic time, further attested by the recent report of portable archaeological art (   (Sankhyan, 2017d). It is further strengthened by the recent notices of cupules on the Siwalik sand-rocks (Sankhyan, unp.).

1) Present study is a first report of Palaeolithic hafting from Ghumarwin
Sub-Himalayan region of North India presenting richest signatures compared to the rest of India.
2) The Sub-Himalayan hafted tools are highly diversified and indicate diverse human activities at the Middle Palaeolithic to Upper Palaeolithic level. These include extensive wood cutting probably for hut-making, efficient hunting, earth-work or soil processing. These hafted tools were precursors for the subsequent modern hafted metal tools and weapons.
3) Present study also adds data on hafting from other parts of India, e.g., the central Narmada valley associated with human fossil record of the inventors of hafting in South Asia.